The rapper developed a rather severe ear infection he can’t quite shake, and learned that air travel would put him at serious risk for hearing loss.

The festival initially tweeted the doctor’s excuse Fetty turned over as proof that he wasn’t just being flaky (and which he reportedly gave them permission to share), but that has since been deleted. Now, Fetty was tweeted out an apology and further explanation for missing out on the major British gigs.

“I’ve been fighting a horrible ear infection, and my doctor ordered me to come in before I flew again,” he wrote. Fetty tried to push back that visit until after his appearance at the festival, but his doctor informed him that he risked rupturing his ear drum or doing even greater damage. As a result, he was ordered not to fly for 7-10 days. “I’m sorry, but I’ll be back as soon as possible to turn up with y’all. Thank you for your understanding, love, and support.”